This sensor can measure a max water depth of 16'9" or 5.1m (0.5 Bar). For deeper water measurement get part SW900-SENSOR-10M-HP. The SW900 Sensor is a high reliability precision engineered product which has been designed for long life and reliable accurate performance. This version features a 10M (33ft) ruggedized polyethylene vented cable that is coupled to a machined Stainless Steel SS316 sensor assembly. Sensing pressure range is set from 0 to 0.5 bar (50kPa).